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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 16:22:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 16:22:16 -0700 |
| commit | 76ca7d1cca761bb9712dfcad9a27d70b520874ae (patch) | |
| tree | 4af495beaeee26b126e3dc6f0aa644e8e0b9e24e /mm/compaction.c | |
| parent | d0cb5f71c5cde8e1ef6d03983641366800ceabdb (diff) | |
| parent | 8d81e29fae18b93ab51f308b31babe1a6eb04314 (diff) | |
| download | blackbird-obmc-linux-76ca7d1cca761bb9712dfcad9a27d70b520874ae.tar.gz blackbird-obmc-linux-76ca7d1cca761bb9712dfcad9a27d70b520874ae.zip | |
Merge branch 'akpm' (incoming from Andrew)
Merge first patch-bomb from Andrew Morton:
- Various misc bits
- kmemleak fixes
- small befs, codafs, cifs, efs, freexxfs, hfsplus, minixfs, reiserfs things
- fanotify
- I appear to have become SuperH maintainer
- ocfs2 updates
- direct-io tweaks
- a bit of the MM queue
- printk updates
- MAINTAINERS maintenance
- some backlight things
- lib/ updates
- checkpatch updates
- the rtc queue
- nilfs2 updates
- Small Documentation/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (237 commits)
Documentation/SubmittingPatches: remove references to patch-scripts
Documentation/SubmittingPatches: update some dead URLs
Documentation/filesystems/ntfs.txt: remove changelog reference
Documentation/kmemleak.txt: updates
fs/reiserfs/super.c: add __init to init_inodecache
fs/reiserfs: move prototype declaration to header file
fs/hfsplus/attributes.c: add __init to hfsplus_create_attr_tree_cache()
fs/hfsplus/extents.c: fix concurrent acess of alloc_blocks
fs/hfsplus/extents.c: remove unused variable in hfsplus_get_block
nilfs2: update project's web site in nilfs2.txt
nilfs2: update MAINTAINERS file entries fix
nilfs2: verify metadata sizes read from disk
nilfs2: add FITRIM ioctl support for nilfs2
nilfs2: add nilfs_sufile_trim_fs to trim clean segs
nilfs2: implementation of NILFS_IOCTL_SET_SUINFO ioctl
nilfs2: add nilfs_sufile_set_suinfo to update segment usage
nilfs2: add struct nilfs_suinfo_update and flags
nilfs2: update MAINTAINERS file entries
fs/coda/inode.c: add __init to init_inodecache()
BEFS: logging cleanup
...
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 918577595ea8..b6ab77160068 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -584,6 +584,15 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, continue; } + /* + * Migration will fail if an anonymous page is pinned in memory, + * so avoid taking lru_lock and isolating it unnecessarily in an + * admittedly racy check. + */ + if (!page_mapping(page) && + page_count(page) > page_mapcount(page)) + continue; + /* Check if it is ok to still hold the lock */ locked = compact_checklock_irqsave(&zone->lru_lock, &flags, locked, cc); @@ -1186,6 +1195,7 @@ static void compact_node(int nid) struct compact_control cc = { .order = -1, .sync = true, + .ignore_skip_hint = true, }; __compact_pgdat(NODE_DATA(nid), &cc); @@ -1225,7 +1235,7 @@ int sysctl_extfrag_handler(struct ctl_table *table, int write, } #if defined(CONFIG_SYSFS) && defined(CONFIG_NUMA) -ssize_t sysfs_compact_node(struct device *dev, +static ssize_t sysfs_compact_node(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { |
